比较函数

<script type="text/javascript">
/**
  * 比较函数
  * @param {Object} param1 要比较的参数1
  * @param {Object} param2 要比较的参数2
  * @return {Number} 如果param1 > param2 返回 1
  * 如果param1 == param2 返回 0
  * 如果param1 < param2 返回 -1
  */
 function compareFunc(param1,param2){
	 //如果两个参数均为字符串类型
	 if(typeof param1 == "string" && typeof param2 == "string"){
		 return param1.localeCompare(param2);
	 }
	 //如果参数1为数字，参数2为字符串
	 if(typeof param1 == "number" && typeof param2 == "string"){
		 return -1;
	 }
	 //如果参数1为字符串，参数2为数字
	 if(typeof param1 == "string" && typeof param2 == "number"){
		 return 1;
	 }
	 //如果两个参数均为数字
	 if(typeof param1 == "number" && typeof param2 == "number"){
		 if(param1 > param2) return 1;
		 if(param1 == param2) return 0;
		 if(param1 < param2) return -1;
	 }
 } 
var arr1 = ["流","浪","的","博","客"]; 
console.log(arr1.sort(compareFunc)); 
var arr2 = [111,2,3,45,6,777]; 
console.log(arr2.sort(compareFunc));
</script>